Safety attachment for gas-burners



(No Model.)

SAFETY ATTACHMENT FOR GAS BURNERS. No. 417,101; Patented Dec. 10, 1889'.

Wit 5555 I To all whom it may concern: 7

for Gas-Burners, of which the following is a the position of the gas-jet, so that an igno- IUNITED STATES;

PATENT OFFICE.

MICHAEL SIERSDORFER, OF LOUISVILLE, KENTUCKY.

SAFETY ATTACHMENT FOR GAS-BURNERS.

SPECIFICATION forming part of Letters Patent No. 417,101, dated December 10, 1889.

Application filed May 12, 1888. Serial No. 273,701. (No model.)

Be it known that I, .MICHAEL SIERSDORFER, a citizen of the United States, residing at Louisville, county of Jefferson, and State of Kentucky, have invented certain new and useful Improvements in Safety Attachments specification.

111 a former application, Serial No. 234,177, I showed, described, and claimed an automatic gas-extinguisher provided with a disk pivoted by means of an arm to the gas pipe or burner, the disk being located in the proximity of the burner-tip and directly opposite rant person in blowing against the flame will cause the disk to drop, thereby causing the valve or key to turn and cut off the supply, so thatthe flow of gas will be discontinued.

My present invention relates to improvements in the construction and arrangement of parts, and also relates to the combination of a gravity-operating automatic gas-extinguisher with an electric circuit, said circuit being provided with an alarm, as hereinafter described, so that when the extinguisher is caused to operate by gravity by the pressure of the air against the disk the electric circuit will be closed, the alarm will begiven, and the gas will be cut off, all by the same movement or operation.

To these ends my invention consists in the combination, with an ordinary gas-burner, of the following mechanism, to wit: a horizontal rotary key, spigot, or cutoff, which extends through and in one position closes the neck or supply-pipe of the burner, and has extending rigidly from it a disk or vane, which in the open condition of the key is on the rear side of and faces the flame. Said key also carries a projecting track or slide for a weight or overpoise, which in the open condition of the key assists in holding it to that condition, but which, the instant the key begins to be revolved to the closed position, slides down the now depressed track and assists in bringing the key to its completelyclosed position. The dimensions and position of the disk are purposelysuch as to start the key moving to the closed position by the breath of a person ignorantly attempting to extinguish the flame by blowing it out. This disk may be formed concave toward the frame, in order to concentrate the users breath upon it, and may have a nickel-plated or other suitable facing, so as to serve as a reflector. A spring-catch is provided to retain the weight inits extreme position when it has been thrown backward, so that after the gas has once been extinguished by this means the automatic extinguisher will have to be reset. By this means a recurrence of the accident is prevented, the ignorant p erson being thereby incapacitated from again using the burner.

In combination with this gravity-operating gas-extinguisher I arrange an electric circuit, which is adapted to be closed when the disk drops down and the gas is turned off. This circuit may be located in any convenient position, and I do not limit myself to any special arrangement.

Referring to the accompanying drawings, which form a part of this specification, Figure 1 is a side elevation of my device in its normal position. Fig. 2 shows the device in its lower position. Fig. 3 is a diagrammatic view showing the extinguishing device in combination with an electric circuit having an alarm, for the purpose described.

In the drawings, B represents the base, and T the tip, of a gas-burner. This gas-burner is provided with a chamber, a neck 0, through which extends the key or valve K, which. serves as a on t-off for the flow of gas when in the position shown in Fig. 2, said valve being provided with an opening which permits the flow of the gas through it when in the upright position shown in Fig. 1. Attached to this key or valve in any suitable manner is a rigid wire or frame IV, preferably formed as shown in the drawings. This wire has in one portion of its length a track or slide S, on which travels or slides a weight G. As shown in Fig. l, the track or slide S is in its normal and horizontal position, and the weight G is located at the extreme front end of said track. lVhen, however, the weight has assumed an extreme position at the other end of the track or slide S, as will be hereinafter described, a clip or spring L is adapted to catch and lock the said weight in its latter position, as shown disk and its attachment to the key are such that in the open position of the key the said disk will receive to the best advantage the breath of the ignorant user, and by giving way thereto will commence to close the key.

Simultaneously with the downward movement of the disk D and consequent rotation of its attached key is the sliding movement of the weight G. As the horizontal track or slide'S becomes more and more declined the weight G will rapidly descend and will carry the wire or frame W and the disk D with it to the position shown in Fig. 2. By this means, when the flame or gas-jet is blown against by any person for the purpose of extinguishing the light, the disk will receive the pressure and, responding to the same.will descend, and the parts will thus operate by bringing the key to its closed position to cutoff the flow of the gas automatically. The weight G is locked to in its lower position by means of a springclip L, so that if the working of the extinguisher is accidentally noticed and the key is restored to its open position the weight G will again operate to automatically reclose the key and shut off the supply of gas.

In connection with this gravity-operating automatic gas-extinguisher I arrange an electric circuit E. (Shown diagrammatically in Fig. 3.) The electrical conductor is suitably insulated at I I, Where it is attached to'the burner. \Vhen the disk is in its normal position, as shown in Fig. 1, the circuit is open. lVhen it is thrown down, as shown in Fig. 2', the circuit will be closed, which will cause the alarm A to be rung. This alarm may be located in a central office, in a hotel, or any other desired room; and it will be seen that it will continue to ring until the mistake has been rectified. Spring-connections E and E serve to complete the electrical circuit.

Of course the automatic extinguisher is adapted to operate without the electric circuit; but the circuit forms an important addition to it in some cases, and hence I have shown them as operating in connection with each other and forming integral portions of the same system.

The alarm maybe either an audible or a visible one or both audible and visible.

Having thus described my invention, the following is What I claim as new therein and desire to secure by Letters Patent:

1. The combination, with a gas-burner and a horizontal keyor spigot, of the disk or expanded projection D from the spigot, the rigidly-attached track or slide S, and a sliding weight or overpo'ise G, the whole being arranged and adapted to operate as and for the purposes set forth.

2. The combination, with a gas-burner, of a rotary key, spigot, or cut-0ft, and rigidly attached to said cut-off-and moving with it a frame S W, a disk D, attached to and an overpoise sliding upon said frame, substantially as and for the purpose set forth.

3. The combination, in an automatic gasextinguisher, of a rotary valve or cut-off, the attached and co-moving track S and disk D, and the weight or gravitating slide G,mounted upon said track, the whole being arranged and operating as set forth.

4. The combination, in an automatic gasextinguisher, of the mutually-attached and co-moving rotary cut-off K, normally-horizontal track S, and normally-vertical vane or disk D, the automatically-sliding weight G, riding upon said track, and the automatic clip L for locking the said weight to its lower position, as and for the purposes set forth.

MICHAEL SIERSDORFER.

Witnesses:

HARRY STUCKY, JOHN TREBING. 

